lower riser assembly
21Kelp forest — Kelp forests are underwater areas with a high density of kelp. They are recognized as one of the most productive and dynamic ecosystems on Earth.Mann, K.H. 1973. Seaweeds: their productivity and strategy for growth. Science 182: 975 981.] Kelp… …
22Coiled tubing — In the oil and gas industries, coiled tubing refers to metal piping, normally 1 to 3.25 in diameter, used for interventions in oil and gas wells and sometimes as production tubing in depleted gas wells, which comes spooled on a large reel. Coiled …
23Space-based solar power — Left: Part of the solar energy is lost on its way through the atmosphere by the effects of reflection and absorption. Right: Space based solar power systems convert sunlight to microwaves outside the atmosphere, avoiding these losses, and the… …
24Solar energy — is the light and radiant heat from the Sun that powers Earth s climate and weather and sustains life. Since ancient times it has been harnessed for human use through a range of technologies. Solar radiation along with secondary solar resources… …
25Sand casting — Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. It is relatively cheap and sufficiently refractory even for steel foundry use. A suitable bonding agent (usually clay)… …
26Neil Peart — For the Australian rules footballer, see Neil Peart (footballer). Neil Peart Peart performing a drum solo at the Xcel Energy Center on May 22, 2008. Photo by Matt Becker Background information …
27Metalworking — Machining a bar of metal on a lathe. Metalworking is the process of working with metals to create individual parts, assemblies, or large scale structures. The term covers a wide range of work from large ships and bridges to precise engine parts… …
28Fire sprinkler system — A fire sprinkler system is an active fire protection measure, consisting of a water supply, providing adequate pressure and flowrate to a water distribution piping system, onto which fire sprinklers are connected. Although historically only used… …
29Conner Peripherals — HDD with 213MB capacity Conner Peripherals was a company that manufactured hard drives for personal computers. Conner Peripherals was founded in 1985[1] by Seagate Technology co founder Finis Conner[2] but it in itself ne …
30Solar panel — Photovoltaic module redirects here. For the heat collectors, see Solar thermal collector. An installation of solar panels in rural Mongolia …
